title: Gross Motor Function Classification System: impact and utility.
mesh_terms: D002547:Cerebral Palsy / Q000145:classification / Q000150:complications*; D002648:Child; D006801:Humans; D009048:Motor Skills / Q000145:classification*; D019957:Motor Skills Disorders / Q000145:classification*; D012016:Reference Values; D012720:Severity of Illness Index